arraylist
v0.1.0
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List based on Array
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ArrayList
ArrayList inherits from JavaScript Array, without overwriting or populate this class.
##Install:
# npm install arraylist
API:
get(index)
Returns an element by position:
var list = new ArrayList;
list.add([1, 2, 3, 4, 5]);
list.get(0); // 1
list.get(1); // 2
list.get(0) == list[0]; // true
set(index, value)
Set an element by position
var list = new ArrayList;
list.set(0, 'hello');
list.set(1, 'world');
list.get(0); // hello
list.get(1); // world
contains(element)
Check if an element is in the list
var list = new ArrayList;
list.add([1, 2, 3]);
list.contains(1)); // true
list.contains(2)); // true
list.contains(3)); // true
list.contains(4)); // false
add(elements)
Add elements to the list
var list = new ArrayList;
list.add(1);
list.add('car');
list.add([2, 3, 4]);
list.length; // 5
isEmpty()
Check if the list contains no elements
var list = new ArrayList;
list.isEmpty(); // true
list.add('something');
list.isEmpty(); // false
equals(list)
Check if two lists are equals
var list = new ArrayList;
var list2 = new ArrayList;
list.add([1, 2, 3]);
list.equals(list2); // false
list2.add([1, 2, 3]);
list.equals(list2); // true
clone()
Creates a copy of the list
var list = new ArrayList;
list.add([1, 2, 3]);
var list2 = list.clone();
list.equals(list2); // true
remove(index)
Removes an element by position
var list = new ArrayList;
list.add([1, 2, 3]);
list.remove(0);
list; // [2, 3]
removeElement(element)
Removes a specified element
var list = new ArrayList;
list.add([1, 2, 3]);
list.removeElement(2);
list; // [1, 3]
removeAll(list)
Remove all the elements in another collection
var list = new ArrayList;
var list2 = new ArrayList;
list.add([1, 2, 3, 4, 5]);
list2.add([1, 3, 5]);
list.removeAll(list2);
list; // [2, 4]
replaceAll(list)
Replace all the elements of the list
var list = new ArrayList;
var list2 = new ArrayList;
list.add([1, 2, 3, 4, 5]);
list2.add([1, 3, 5]);
list.replaceAll(list2);
list; // [1, 3, 5]
clear()
Remove all the elements in the list
var list = new ArrayList;
list.add([1, 2, 3, 4, 5]);
list.clear();
list.isEmpty(); // true
toArray()
Return a new array with all the elements in the same order
var list = new ArrayList;
list.add([1, 2, 3]);
list.toArray(); // [1, 2, 3]
first([n])
Returns the first element of the list. [see]
var list = new ArrayList;
list.add([1, 2, 3]);
list.first(); // 1
list.first(2); // [1, 2]
initial([n])
Returns everything but the last entry of the list. [see]
var list = new ArrayList;
list.add([1, 2, 3, 4, 5]);
list.initial(); // [1, 2, 3, 4]
last([n])
Returns the last element of the list. [see]
var list = new ArrayList;
list.add([1, 2, 3]);
list.last(); // 3
rest(index)
Returns the rest of the elements in the list. [see]
var list = new ArrayList;
list.add([1, 2, 3, 4, 5]);
list.rest(); // [1, 2, 3, 4]
compact()
Returns a new list with the false values removed. [see]
var list = new ArrayList;
list.add([1, false, 0, '', 5]);
list.compact(); // [1, 5]
flatten()
Returns a new list flattened. [see]
var list = new ArrayList;
list.add([1, [2], [[3]]]);
list.flatten(); // [1, 2, 3]
*without(values)
Returns a new list without the specified values. [see]
var list = new ArrayList;
list.add([1, 2, 3, 4, 5]);
list.without([1, 3, 5]); // [2, 4]
partition(predicate)
Split the list into two lists. [see]
var list = new ArrayList;
list.add([1, 2, 3, 4]);
list.partition(function(n) {
return n % 2 == 0; // pair or odd
}); // [[1, 3], [2, 4]]
*union(lists)
Returns the list joined with the arrays specified, the join is unique. [see]
var list = new ArrayList;
var list2 = new ArrayList;
list.add([1, 2, 3]);
list2.add([1, 4, 5]);
list.union(list2); // [1, 2, 3, 4, 5]
*intersection(lists)
Returns the list intercepted with the arrays specified, the intersection is unique. [see]
var list = new ArrayList;
var list2 = new ArrayList;
list.add([1, 2, 3]);
list2.add([1, 2, 4]);
list.intersection(list2); // [1, 2]
*difference(lists)
Returns the list minus the lists specified, the difference is unique. [see]
var list = new ArrayList;
var list2 = new ArrayList;
list.add([1, 2, 3, 4, 5]);
list2.add([1, 3, 5, 10]);
list.difference(list2); // [2, 4]
unique()
Returns a list with the duplicated values removed. [see]
var list = new ArrayList;
list.add([1, 2, 2, 3, 3, 4]);
list.unique(); // [1, 2, 3, 4]
uniq()
Alias for unique.
*zip(lists)
Merges together the values of each of the lists with the values at the corresponding position. [see]
object([values])
Converts lists into objects. [see]
sortedIndex(value, [iterator], [context])
Returns the index at which the value should be inserted into the list. [see]
var list = new ArrayList;
list.add([10, 20, 30]);
list.sortedIndex(25); // 2
each()
Alias for forEach.
map(iterator, [context])
Returns a new list with each value mapped through a transformation. [see]
var list = new ArrayList;
list.add([1, 2, 3]);
list.map(function (n) {
return n * 2;
}); // [2, 4, 6]
reduce(iterator, memo, [context])
[see]
reduceRight(iterator, memo, [context])
[see]
find(predicate, [context])
Returns a new list with the occurrences that passes the test. [see]
var list = new ArrayList;
list.add([1, 2, 3, 4, 5, 6]);
list.find(function (n) {
return n % 2 == 0;
}); // [2, 4, 6]
findOne(predicate, [context])
Returns the first occurrence that passes the test. [see]
var list = new ArrayList;
list.add([1, 2, 3, 4, 5, 6]);
list.findOne(function (n) {
return n % 2 == 0;
}); // 2
where(properties)
[see]
findWhere(properties)
[see]
reject(predicate, [context])
Returns the values in list without the elements that the truth test passes. [see]
every([predicate], [context])
Returns true if all of the values in the list pass the predicate truth test. [see]
var list = new ArrayList;
list.add([1, 2, 3, 4, 5]);
list.every(function (n) {
return n > 0;
}); // true
some([predicate], [context])
Returns true if any of the values in the list pass the predicate truth test. [see]
var list = new ArrayList;
list.add([1, 2, 3]);
list.some(function (n) {
return n % 2 == 0;
}); // true
*invoke(methodName, arguments)
Calls the method on each value in the list. [see]
var list = new ArrayList;
list.add([1, 2, 3]);
var list = new ArrayList;
list.add([1, 2, 3, 4, 5]);
list.max(); // 5
min([iterator], [context])
Returns the minimum value in list. [see]
var list = new ArrayList;
list.add([1, 2, 3, 4, 5]);
list.min(); // 1
sortBy(iterator, [context])
Returns a new list with the values sorted. [see]
groupBy(iterator, [context])
[see]
indexBy(iterator, [context])
[see]
countBy(iterator, [context])
[see]
shuffle()
Returns a shuffled copy of the list, using a version of the Fisher-Yates shuffle. [see]
var list = new ArrayList;
list.add([1, 2, 3, 4, 5]);
list.shuffle(); // [3, 1, 5, 4, 2]
sample([n])
Returns a random sample from the list. [see]
var list = new ArrayList;
list.add([1, 2, 3, 4, 5]);
list.sample(); // 4
size()
Returns the length of the list.
var list = new ArrayList;
list.add([1, 2, 3, 4, 5]);
list.size(); // 5